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Brian MacPhelim O'Neill
Irish clan chief
Years: 1540 - 1574
Brian MacPhelim O'Neill is chief of the O'Neills of Clanaboy.
O'Neill turns against the English when he learns of plans for imposed settlements.
Walter Devereux, 1st Earl of Essex, forces him to submit.
O'Neill rebels again and is executed in 1574.
